fbi does not know whether it there was a mob that was exploited or was it set up by al qaeda or some other group -- we think now it may be some other group -- or not? >> evan? >> i don't think there's any conspiracy here. i think it does take time to figure out who did it. i think they would dearly love to kill the person who did it and eventually they will. >> want to read a great book about a cagey chief executive? by evan thomas. how would he handle the situation like this one? >> based on his presidency, he would have done everything he possibly could to avoid a war. but he would have been aggressive, used the cia and technology to stop iran from getting a bomb. and, this is important, he would have drawn the line somewhere and have been serious about it. heas aall-or-notng guy could no half-mohrs. if you are going to fight a war, all the way. >> which, ironically, is what the israelis are asking obama to draw the line -- you had the biggest power in the world -- that is the only thing, netanyahu said at the u.s. this week, that could possibly change the course. but i just want t